Sonic the Hedgehog CD (ソニック・ザ・ヘッジホッグＣＤ) is the first and only Sonic the Hedgehog title released for the Mega-CD add-on used with the Sega Mega Drive console. Developed separately from the sequels done by the Sega Technical Institute, the game was directed by the creator of Sonic, Naoto Ohshima.
Introducing such fan favorites as Amy Rose and Metal Sonic, it has become something of a cult classic, partly because of its release on the expensive add-on that most Mega Drive owners did not have access to, and partly because of its visual style and gameplay that makes it stand out from the other classic games in the series.
